hill, mount(-ain)

Concise Bible Dictionary:

The ordinary word for this is har, which is employed both for the mountain ranges, some of which run through Israel from north to south, and also for the higher mountains that rise upon those ranges or on the plains. Thus in 2 Chronicles 13:44And Abijah stood up upon mount Zemaraim, which is in mount Ephraim, and said, Hear me, thou Jeroboam, and all Israel; (2 Chronicles 13:4) it says, “Mount Zemaraim, which is in mount Ephraim,” which means that mount Zemaraim was situated in the hill-country of Ephraim. Mount Ephraim does not refer to any particular mountain; but to the range of hills, or hill country in Ephraim, extending from Bethel to the plains of Jezreel. In like manner there are parts that can be called hill-country throughout all the land, as in Joshua 13:66All the inhabitants of the hill country from Lebanon unto Misrephoth-maim, and all the Sidonians, them will I drive out from before the children of Israel: only divide thou it by lot unto the Israelites for an inheritance, as I have commanded thee. (Joshua 13:6) and Luke 1:39,6539And Mary arose in those days, and went into the hill country with haste, into a city of Juda; (Luke 1:39)
65And fear came on all that dwelt round about them: and all these sayings were noised abroad throughout all the hill country of Judea. (Luke 1:65). Each of the mountains is considered under its own name.

Strong’s Dictionary of Greek Words:

Number:
3735 (find all occurrences in KJV Bible)
Greek:
ὄρος
Transliteration:
oros
Phonic:
or’-os
Meaning:
probably from an obsolete ὄρω (to rise or "rear"; perhaps akin to 142; compare 3733); a mountain (as lifting itself above the plain)
KJV Usage:
hill, mount(-ain)